Feature

Immigrants Teach Us What to Do with Morons

Rare South African Mammal Comes to Washington Zoo

Porous Hose Useful in Crop Irrigation

No Living Honeybee Has Ever Stung a Human Being

Five Great Bridges Building; Funds from RFC and PWA

Supposed Tenth Satellite of Jupiter Only Asteroid

Front Matter

Regular Job Is Best Tuberculosis Insurance

Jade Pendant Clue to Child Sacrifice Long Ago

Higher Speeds for Airplanes and Greater Safety Foreseen

First Glances at New Books

Mercury Makes Brief Visit